Borderou de evaluare (job #539326)

Compilare: user.cpp: In function ‘int main()’: user.cpp:13:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:27:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:32:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:41:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:46:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:55:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:60:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:69:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:74:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:86:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:97:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:108:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:119:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]